Prototype Nokia Phone Recharges Without Wires

Jun 18, 2009 10:00

Is the world going too fast or we might just have found the Holy Grails?

After recently enjoying the combined technology of laptop and mobile phone, now the scientists and researchers in giant telecommunication companies have introduced us yet another great invention: Wireless power.

Nokia has pioneered this technology, applying a mobile phone technology that charges itself from ambient radio waves on the air, and turns that energy into usable power. The charged power is at least 'enough' to keep the mobile phone from running out of juice.

While "traditional" (if there is such a thing) wireless power systems are specifically designed with a transmitter and receiver in mind, Nokia's system isn't finicky about where it gets its wireless waves. TV, radio, other mobile phone systems -- all of this stuff just bounces around the air and most of it is wasted, absorbed into the environment or scattered into the ether. Nokia picks up all the bits and pieces of these waves and uses the collected electromagnetic energy to create electrical current, then uses that to recharge the phone's battery. A huge range of frequencies can be utilized by the system (there's no other way, really, as the energy in any given wave is infinitesimal). It's the same idea that Tesla was exploring 100 years ago, just on a tiny scale.

Mind you, harvesting ambient electromagnetic energy is never going to offer enough electricity to power your whole house or office, but it just might be enough to keep a cell phone alive and kicking. Currently Nokia is able to harvest all of 5 milliwatts from the air; the goal is to increase that to 20 milliwatts in the short term and 50 milliwatts down the line. That wouldn't be enough to keep the phone alive during an active call, but would be enough to slowly recharge the cell phone battery while it's in standby mode, theoretically offering infinite power -- provided you're not stuck deep underground where radio waves can't penetrate.

Nokia says it hopes to commercialize the technology in three to five years.

Drug addiction is a global concern that claims over 500,000 lives annually in the USA, let alone the whole world. While efforts to cure drug addiction are underway, this curse is too extensive to be cured through isolated efforts. Read more

Some men may be blessed with fast growing facial hair where as other my struggle with slow growth and patchy whiskers. The rate of facial hair growth highly depends on genetics. But if you want to grow a good beard there are a few tricks that can increase the growth rate and fullness of your beard. To grow a fast beard faster you need to follow a regular regime which would lead to a good growth of beard. It is as follows: Read more